Basic Computer Bangla

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! "# $। ।

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Bit, Byte, KB,MB % GB &।
'( )%* ?

+, ?
?

?
-?
Operating System ?
. -?
Windows ?

Windows ) (% & . /& /0 ।

(% " && ?

1' / ?

234 5 ।

.।

/ 67 8 1 '?

/ 67 9 1 '?

/ 62 / 67 ' ; <= 1 '?

/ > 1 '?

/ ' 1 '?

CPU.

Control Unit.

Arithmetic and Logic Unit.

Memory.

Main Memory.

Input Device.

Output Device.

Processing Device.

Keyboard.























1. Super Computer
2. Mainframe Computer
3. Mini Computer
4. Micro Computer

Memory

Memory

Main Memory Axilury Memory

RAM ROM

Memory 
1. Main Memory

2. Auxiliary Memory 

Main Memory

Auxiliary Memory

Characteristic of Computer

High Speed Memory)
(Correctness Automation
(Accuracy Logical Decision

Reliability Versatility

Diligence Endless Life

RAM

RAM

Bureau of Statistics

History of Computer

Abacus

Charles Babbage

Analytical

Software

System Software
Application Software

System Software

 MS-DOS
 UNIX
 WINDOWS

Application Software









Bit & Byte

( Bit & Byte

Bit Byte KB = Kilobyte
byte KB MB = Megabyte
KB MB GB = Gigabyte
MB GB TB = Terabyte
GB TB
a.....z, A-----Z, @ # %
Coding American Standard Code

for Information Interchange

Number System

Hieroglyphics

Mayan Roman

Decimal Number System
Binary Number System
Octal Number System

Hexadecimal Number System
Decimal Number System

base

Binary Number System

Octal Number System
base

Hexadecimal Number System
Base

Decimal Binary Octal Hexadecimal
0 00 0 0
1 01 1 1
2 10 2 2
3 11 3 3
4 100 4 4
5 101 5 5
6 110 6 6
7 111 7 7
8 10 8
9 1000 11 9
10 1001 12 A
11 1010 13 B
12 1011 14 C
1100

13 1101 15 D

14 1110 16 E

15 1111 17 F

17 10000 20 10

18 10001 21 11

19 10010 22 12

20 10011 23 13

21 10100 24 14

22 10101 25 15

23 10110 26 16

24 10111 27 17

25 11000 30 18

26 11001 31 19

27 11010 32 1A

28 11011 33 1B

29 11100 34 1C

30 11101 35 1D

31 11110 36 1E

32 11111 37 1F

33 100000 40 20

34 100001 41 21

35 100010 42 22

36 100011 43 23

37 100100 44 24

38 100101 45 25

Decimal to Binary Conversion

(110010)2 = ?
(110010)2 = 0 × 20 + 1 × 21 + 0 ×22 + 0 × 23 + 1 × 24 + 1 × 25

= 0 + 2 + 0 + 0 + 16 + 32
= 50
= (43)10

(110010)2 = 1 × 25 + 1 × 24 + 0 ×23 + 0 × 22 + 1 × 21 + 0 × 20
= 32 + 16 + 0 + 0 + 2 + 0

= 50
= (43)10

110010 50

(372)8 = 3 × 82 + 7 × 81 + 2 × 80
= 3 × 64 + 7 × 8 + 2 × 1
= 192 + 56 + 2
= (250)10

372 250

84 83 82 81 80 8-1 8-2 8-3 8-4 8-5

9AF

(9AF)16 = 9 × (16)2 + A × (16)1 + F × (16)0
= 9× 256 + 10 × 16 + 15 × 1
= 2304 + 160 + 15
= (2479)10
9AF 2479

Internet

Internet

History of Internet International Network
Internet
©|
LAN, MAN, WAN, ISDN

( US

Department of Defense
(ARPA

Netizen

E-mail
E-mail

[email protected] E-mail E-mail
@ User-name

User

E-mail Address [email protected]
Internet Address
User Name

Domain Name

Organization

Geographic Region Geographic Region

Specific Computer

IP Address 198.105.232.4

Domain name www.microsoft.com

Indicate Web server computer Organization Type
Organization

FIG : The IP Address and associated domain name for Microsoft
Corporation

Domain Address

.com Business .mil Military
.edu College and Universities .net Network Administrator
.gov Government .org Organizations
.int International Organization

General Computing Knowledge

Abbreviation

AI : Artificial Intelligence
Automated Tailor Machine
ATM : American Standard Code for Information Interchange
American National Standard Institute.
ASCII : Arithmetic Logic Unit
Basic Input Output System
ANSI : Beginners All-purpose Symbolic Instruction Code
Bangladesh Computer Somity
ALU : Bangladesh Computer Council
Control Programme for Microprocessor
BIOS :

BASIC :

BCS :

BCC :

CPM :

CD : Compact Disk

CPU : Central Processing Unit

DOS : Disk Operating System

ENIAC : Electronic Numerical Integrator And Computer.

E-mail : Electronics Mail

FDD : Floppy Disk Drive

GPS : Global Positioning System

GIS : Geographical Information System.

HP : Hulled Packard

HDD : Hard Disk Drive

HTML : Hyper Text Markup Language

IBM : International Business Machine

ISP : Internet Service Provider

IC : Integrator Circuit.

MAN : Metropolitan Area Network

MIS : Management Information System.

RAM : Random Access Memory

ROM : Read Only Memory

PDA : Personal Digital Assistance

LCD : Liquid Crystal Display

LAN : Local Area Network

LSI : Large Scale Integrator.

PLC : Programarable Logic Controller

PC : Personal Computer

NS / PS : Nana Second / Pico Second

NC : Norton Commander

3D : 3 Dimensions

NASA : National Aeronautics and Space Administration

OS : Operating System

WAN : World Area Network

www : World Wide Web

DISIT : Dharmarajika Institute of Science & Information Technology

Practical

Microsoft Word

What is Microsoft Word or MS Word?

Microsoft Word Word Processing Software- Software
MS Word
Compose Type, Drawing, Project Profile

Microsoft Corporation Software Microsof
MS Word Microsoft
Word
Word

* About Version of Microsoft Word.

Microsoft Word Version Version

 Microsoft Word 6.0
 Microsoft Word 7.0
 Microsoft Word 97
 Microsoft Word 2000
 Microsoft Word XP
 Microsoft Word XP

Microsoft Word

Microsoft Word or MS Word

MS Word Document Text



 Project Profile



 Drawing
 Compose Type

Keyboard

 MS Word on Curso

 Cursor (Character j press Back Space.

 Cursor Character) press Delete

 press Space Bar.

 Capital Letter Shift dhaka

= Dhaka.

 Capital Letter press Caps Lock.

 press Enter.

 Tab Key press Cursor

 press End Key.

 press Home Key.

 Text Control + Home Key.

 Text Control + End Key.

 Page Page Up Key.
 Page Page Down Key.
 Num Lock Key
 Insert Key press Number Off On

1. Alphabetic key : A, B, C, D ...........Z

Numeric key

3. Function key : F1, F2, F3, F4 .........F12

4. Movement key : , , , 

5. Special key : Home, Insert, End, Pause Break, Page Up, Page

Down etc.

Command key : Alt (Alter), Ctrl (Control), SH (Shift)

Microsoft Word

* Screen

Menu Bar Title Bar

Standard Bar Formatting Bar

Ruler/Scale

Scroll Box

Drawing Bar Status Bar Scroll Bar

Task Bar

Microsoft Excel

Microsoft Excel

Microsoft Excel Spreadsheet Microsoft Office

Worksheet Analysis Marksheet
Microsoft Word
Spreadsheet

Excel Column) Row
A, B, C, D
1, 2, 3, 4

Excel

Balance Sheet Excel

Microsoft Excel Accounting Package ProgramI

PowerPoint

Microsoft PowerPoint

** What is Microsoft PowerPoint?

Microsoft Office Microsoft PowerPoint

Microsoft Corporation Windows

95/98/2000/XP Gi Supported Presentation Package Program

Microsoft PowerPoint Presentation Package Program

Presentation Display

Microsoft PowerPoint

Microsoft PowerPoint






Presentation Display

1) File
2) New Slide
Dialog Box

3) OK

Access
Microsoft Access

Microsoft Access Microsoft Access
Microsoft Office

Access

Access

SQL ORACLE Data,
Access

DATABASE
Access
Record, Field